no
Question and rationale: The question is: Has a tumulus been discovered on Mars?
A tumulus is a mound of earth and stones raised over a grave or graves. A grave is a location where a dead body (typically that of a human, although sometimes that of an animal) is buried. Mars has only been explored by unmanned spacecraft. Evidence suggests that the planet was once significantly more habitable than it is today, but whether living organisms ever existed there remains unknown.

no
Question and rationale: The question is: Did Julia Roberts practice blast beats as a child?
Julia Roberts played the clarinet in her school band. Blast beats are a drum beat that originated in hardcore punk and grindcore, and is often associated with certain styles of extreme metal, namely black metal and death metal.

no
Question and rationale:
The question is: Would a Rabbi celebrate Christmas?
A Rabbi is a spiritual leader or religious teacher in Judaism. Christmas is a holiday observed by Christians.